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Finding the Fourth Proportional to 5,805.04, 8,019.12 and 5,280.16

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Solution

The fourth proportional to 5,805.04, 8,019.12 and 5,280.16 is: 7,294.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.04 : 8,019.12 = 5,280.16 : x
  2. Step 2: Convert to fraction form
    5,805.04/8,019.12 = 5,280.16/x
  3. Step 3: Cross multiply
    5,805.04x = 8,019.12 × 5,280.16
  4. Step 4: Simplify right side
    5,805.04x = 42,342,236.66
  5. Step 5: Solve for x
    x = 42,342,236.66/5,805.04
  6. Step 6: Final answer
    x = 7,294.05

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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.