Home / 1,864.23-2,572.34-1,078.13

Finding the Fourth Proportional to 1,864.23, 2,572.34 and 1,078.13

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Solution

The fourth proportional to 1,864.23, 2,572.34 and 1,078.13 is: 1,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.23 : 2,572.34 = 1,078.13 : x
  2. Step 2: Convert to fraction form
    1,864.23/2,572.34 = 1,078.13/x
  3. Step 3: Cross multiply
    1,864.23x = 2,572.34 × 1,078.13
  4. Step 4: Simplify right side
    1,864.23x = 2,773,298.67
  5. Step 5: Solve for x
    x = 2,773,298.67/1,864.23
  6. Step 6: Final answer
    x = 1,487.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.