Home / 5,038.40-7,557.74-1,340.62

Finding the Fourth Proportional to 5,038.40, 7,557.74 and 1,340.62

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Solution

The fourth proportional to 5,038.40, 7,557.74 and 1,340.62 is: 2,010.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.40 : 7,557.74 = 1,340.62 : x
  2. Step 2: Convert to fraction form
    5,038.40/7,557.74 = 1,340.62/x
  3. Step 3: Cross multiply
    5,038.40x = 7,557.74 × 1,340.62
  4. Step 4: Simplify right side
    5,038.40x = 10,132,057.40
  5. Step 5: Solve for x
    x = 10,132,057.40/5,038.40
  6. Step 6: Final answer
    x = 2,010.97

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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.