Home / 1,031.56-1,547.34-262

Finding the Fourth Proportional to 1,031.56, 1,547.34 and 262

Calculator

Solution

The fourth proportional to 1,031.56, 1,547.34 and 262 is: 393

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.56 : 1,547.34 = 262 : x
  2. Step 2: Convert to fraction form
    1,031.56/1,547.34 = 262/x
  3. Step 3: Cross multiply
    1,031.56x = 1,547.34 × 262
  4. Step 4: Simplify right side
    1,031.56x = 405,403.08
  5. Step 5: Solve for x
    x = 405,403.08/1,031.56
  6. Step 6: Final answer
    x = 393

Related Problems

Find fourth proportional to 515.78, 773.67 and 131
Half scale
Find fourth proportional to 2,063.12, 3,094.68 and 524
Double scale
Find fourth proportional to 1,032.56, 1,548.84 and 263
Similar ratio
Find fourth proportional to 1,547.34, 2,321.01 and 393
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.