Home / 5,417.20-8,109.96-4,898.40

Finding the Fourth Proportional to 5,417.20, 8,109.96 and 4,898.40

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Solution

The fourth proportional to 5,417.20, 8,109.96 and 4,898.40 is: 7,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.20 : 8,109.96 = 4,898.40 : x
  2. Step 2: Convert to fraction form
    5,417.20/8,109.96 = 4,898.40/x
  3. Step 3: Cross multiply
    5,417.20x = 8,109.96 × 4,898.40
  4. Step 4: Simplify right side
    5,417.20x = 39,725,828.06
  5. Step 5: Solve for x
    x = 39,725,828.06/5,417.20
  6. Step 6: Final answer
    x = 7,333.28

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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.