Home / 5,001.81-7,501.40-1,490.87

Finding the Fourth Proportional to 5,001.81, 7,501.40 and 1,490.87

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Solution

The fourth proportional to 5,001.81, 7,501.40 and 1,490.87 is: 2,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,001.81 : 7,501.40 = 1,490.87 : x
  2. Step 2: Convert to fraction form
    5,001.81/7,501.40 = 1,490.87/x
  3. Step 3: Cross multiply
    5,001.81x = 7,501.40 × 1,490.87
  4. Step 4: Simplify right side
    5,001.81x = 11,183,604.76
  5. Step 5: Solve for x
    x = 11,183,604.76/5,001.81
  6. Step 6: Final answer
    x = 2,235.91

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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.