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Finding the Fourth Proportional to 5,430.90, 7,395.24 and 5,430.90

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Solution

The fourth proportional to 5,430.90, 7,395.24 and 5,430.90 is: 7,395.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.90 : 7,395.24 = 5,430.90 : x
  2. Step 2: Convert to fraction form
    5,430.90/7,395.24 = 5,430.90/x
  3. Step 3: Cross multiply
    5,430.90x = 7,395.24 × 5,430.90
  4. Step 4: Simplify right side
    5,430.90x = 40,162,808.92
  5. Step 5: Solve for x
    x = 40,162,808.92/5,430.90
  6. Step 6: Final answer
    x = 7,395.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.