Home / 7,312.32-10,972.08-3,614.40

Finding the Fourth Proportional to 7,312.32, 10,972.08 and 3,614.40

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Solution

The fourth proportional to 7,312.32, 10,972.08 and 3,614.40 is: 5,423.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.32 : 10,972.08 = 3,614.40 : x
  2. Step 2: Convert to fraction form
    7,312.32/10,972.08 = 3,614.40/x
  3. Step 3: Cross multiply
    7,312.32x = 10,972.08 × 3,614.40
  4. Step 4: Simplify right side
    7,312.32x = 39,657,485.95
  5. Step 5: Solve for x
    x = 39,657,485.95/7,312.32
  6. Step 6: Final answer
    x = 5,423.38

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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.