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Finding the Fourth Proportional to 7,312.59, 10,090.77 and 4,327.91

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Solution

The fourth proportional to 7,312.59, 10,090.77 and 4,327.91 is: 5,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.59 : 10,090.77 = 4,327.91 : x
  2. Step 2: Convert to fraction form
    7,312.59/10,090.77 = 4,327.91/x
  3. Step 3: Cross multiply
    7,312.59x = 10,090.77 × 4,327.91
  4. Step 4: Simplify right side
    7,312.59x = 43,671,893.94
  5. Step 5: Solve for x
    x = 43,671,893.94/7,312.59
  6. Step 6: Final answer
    x = 5,972.15

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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.