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Finding the Fourth Proportional to 5,342.79, 7,373.19 and 2,985.09

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Solution

The fourth proportional to 5,342.79, 7,373.19 and 2,985.09 is: 4,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342.79 : 7,373.19 = 2,985.09 : x
  2. Step 2: Convert to fraction form
    5,342.79/7,373.19 = 2,985.09/x
  3. Step 3: Cross multiply
    5,342.79x = 7,373.19 × 2,985.09
  4. Step 4: Simplify right side
    5,342.79x = 22,009,635.74
  5. Step 5: Solve for x
    x = 22,009,635.74/5,342.79
  6. Step 6: Final answer
    x = 4,119.50

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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.