Home / 5,427.90-7,490.52-3,070.20

Finding the Fourth Proportional to 5,427.90, 7,490.52 and 3,070.20

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Solution

The fourth proportional to 5,427.90, 7,490.52 and 3,070.20 is: 4,236.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.90 : 7,490.52 = 3,070.20 : x
  2. Step 2: Convert to fraction form
    5,427.90/7,490.52 = 3,070.20/x
  3. Step 3: Cross multiply
    5,427.90x = 7,490.52 × 3,070.20
  4. Step 4: Simplify right side
    5,427.90x = 22,997,394.50
  5. Step 5: Solve for x
    x = 22,997,394.50/5,427.90
  6. Step 6: Final answer
    x = 4,236.89

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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.