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Finding the Fourth Proportional to 1,809.74, 2,715.01 and 1,030.11

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Solution

The fourth proportional to 1,809.74, 2,715.01 and 1,030.11 is: 1,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.74 : 2,715.01 = 1,030.11 : x
  2. Step 2: Convert to fraction form
    1,809.74/2,715.01 = 1,030.11/x
  3. Step 3: Cross multiply
    1,809.74x = 2,715.01 × 1,030.11
  4. Step 4: Simplify right side
    1,809.74x = 2,796,769.60
  5. Step 5: Solve for x
    x = 2,796,769.60/1,809.74
  6. Step 6: Final answer
    x = 1,545.40

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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.