Home / 2,762.87-4,145.38-1,031.63

Finding the Fourth Proportional to 2,762.87, 4,145.38 and 1,031.63

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Solution

The fourth proportional to 2,762.87, 4,145.38 and 1,031.63 is: 1,547.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.87 : 4,145.38 = 1,031.63 : x
  2. Step 2: Convert to fraction form
    2,762.87/4,145.38 = 1,031.63/x
  3. Step 3: Cross multiply
    2,762.87x = 4,145.38 × 1,031.63
  4. Step 4: Simplify right side
    2,762.87x = 4,276,475.06
  5. Step 5: Solve for x
    x = 4,276,475.06/2,762.87
  6. Step 6: Final answer
    x = 1,547.84

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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.