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Finding the Fourth Proportional to 951.19, 1,312.81 and 703.23

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Solution

The fourth proportional to 951.19, 1,312.81 and 703.23 is: 970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.19 : 1,312.81 = 703.23 : x
  2. Step 2: Convert to fraction form
    951.19/1,312.81 = 703.23/x
  3. Step 3: Cross multiply
    951.19x = 1,312.81 × 703.23
  4. Step 4: Simplify right side
    951.19x = 923,207.38
  5. Step 5: Solve for x
    x = 923,207.38/951.19
  6. Step 6: Final answer
    x = 970.58

Related Problems

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Half scale
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Double scale
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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.