Home / 1,547.76-2,322-507.76

Finding the Fourth Proportional to 1,547.76, 2,322 and 507.76

Calculator

Solution

The fourth proportional to 1,547.76, 2,322 and 507.76 is: 761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.76 : 2,322 = 507.76 : x
  2. Step 2: Convert to fraction form
    1,547.76/2,322 = 507.76/x
  3. Step 3: Cross multiply
    1,547.76x = 2,322 × 507.76
  4. Step 4: Simplify right side
    1,547.76x = 1,179,018.72
  5. Step 5: Solve for x
    x = 1,179,018.72/1,547.76
  6. Step 6: Final answer
    x = 761.76

Related Problems

Find fourth proportional to 773.88, 1,161 and 253.88
Half scale
Find fourth proportional to 3,095.52, 4,644 and 1,015.52
Double scale
Find fourth proportional to 1,548.76, 2,323.50 and 508.76
Similar ratio
Find fourth proportional to 2,321.64, 3,483 and 761.64
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.