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Finding the Fourth Proportional to 970.16, 1,337.52 and 659.12

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Solution

The fourth proportional to 970.16, 1,337.52 and 659.12 is: 908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    970.16 : 1,337.52 = 659.12 : x
  2. Step 2: Convert to fraction form
    970.16/1,337.52 = 659.12/x
  3. Step 3: Cross multiply
    970.16x = 1,337.52 × 659.12
  4. Step 4: Simplify right side
    970.16x = 881,586.18
  5. Step 5: Solve for x
    x = 881,586.18/970.16
  6. Step 6: Final answer
    x = 908.70

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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.