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Finding the Fourth Proportional to 5,348.80, 8,030.40 and 4,254.40

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Solution

The fourth proportional to 5,348.80, 8,030.40 and 4,254.40 is: 6,387.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.80 : 8,030.40 = 4,254.40 : x
  2. Step 2: Convert to fraction form
    5,348.80/8,030.40 = 4,254.40/x
  3. Step 3: Cross multiply
    5,348.80x = 8,030.40 × 4,254.40
  4. Step 4: Simplify right side
    5,348.80x = 34,164,533.76
  5. Step 5: Solve for x
    x = 34,164,533.76/5,348.80
  6. Step 6: Final answer
    x = 6,387.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.