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Finding the Fourth Proportional to 957.04, 1,320.24 and 607.12

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Solution

The fourth proportional to 957.04, 1,320.24 and 607.12 is: 837.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.04 : 1,320.24 = 607.12 : x
  2. Step 2: Convert to fraction form
    957.04/1,320.24 = 607.12/x
  3. Step 3: Cross multiply
    957.04x = 1,320.24 × 607.12
  4. Step 4: Simplify right side
    957.04x = 801,544.11
  5. Step 5: Solve for x
    x = 801,544.11/957.04
  6. Step 6: Final answer
    x = 837.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.