Home / 5,127.60-7,647.67-5,038.79

Finding the Fourth Proportional to 5,127.60, 7,647.67 and 5,038.79

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Solution

The fourth proportional to 5,127.60, 7,647.67 and 5,038.79 is: 7,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.60 : 7,647.67 = 5,038.79 : x
  2. Step 2: Convert to fraction form
    5,127.60/7,647.67 = 5,038.79/x
  3. Step 3: Cross multiply
    5,127.60x = 7,647.67 × 5,038.79
  4. Step 4: Simplify right side
    5,127.60x = 38,535,009.64
  5. Step 5: Solve for x
    x = 38,535,009.64/5,127.60
  6. Step 6: Final answer
    x = 7,515.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.