Home / 1,554.30-2,331.81-458.64

Finding the Fourth Proportional to 1,554.30, 2,331.81 and 458.64

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Solution

The fourth proportional to 1,554.30, 2,331.81 and 458.64 is: 688.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.30 : 2,331.81 = 458.64 : x
  2. Step 2: Convert to fraction form
    1,554.30/2,331.81 = 458.64/x
  3. Step 3: Cross multiply
    1,554.30x = 2,331.81 × 458.64
  4. Step 4: Simplify right side
    1,554.30x = 1,069,461.34
  5. Step 5: Solve for x
    x = 1,069,461.34/1,554.30
  6. Step 6: Final answer
    x = 688.07

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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.