Home / 5,420.04-7,460.18-3,845.40

Finding the Fourth Proportional to 5,420.04, 7,460.18 and 3,845.40

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Solution

The fourth proportional to 5,420.04, 7,460.18 and 3,845.40 is: 5,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.04 : 7,460.18 = 3,845.40 : x
  2. Step 2: Convert to fraction form
    5,420.04/7,460.18 = 3,845.40/x
  3. Step 3: Cross multiply
    5,420.04x = 7,460.18 × 3,845.40
  4. Step 4: Simplify right side
    5,420.04x = 28,687,376.17
  5. Step 5: Solve for x
    x = 28,687,376.17/5,420.04
  6. Step 6: Final answer
    x = 5,292.83

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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.