Home / 1,615.10-2,417.05-966.30

Finding the Fourth Proportional to 1,615.10, 2,417.05 and 966.30

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Solution

The fourth proportional to 1,615.10, 2,417.05 and 966.30 is: 1,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.10 : 2,417.05 = 966.30 : x
  2. Step 2: Convert to fraction form
    1,615.10/2,417.05 = 966.30/x
  3. Step 3: Cross multiply
    1,615.10x = 2,417.05 × 966.30
  4. Step 4: Simplify right side
    1,615.10x = 2,335,595.42
  5. Step 5: Solve for x
    x = 2,335,595.42/1,615.10
  6. Step 6: Final answer
    x = 1,446.10

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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.