Home / 1,036.10-1,554.18-386.90

Finding the Fourth Proportional to 1,036.10, 1,554.18 and 386.90

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Solution

The fourth proportional to 1,036.10, 1,554.18 and 386.90 is: 580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.10 : 1,554.18 = 386.90 : x
  2. Step 2: Convert to fraction form
    1,036.10/1,554.18 = 386.90/x
  3. Step 3: Cross multiply
    1,036.10x = 1,554.18 × 386.90
  4. Step 4: Simplify right side
    1,036.10x = 601,312.24
  5. Step 5: Solve for x
    x = 601,312.24/1,036.10
  6. Step 6: Final answer
    x = 580.36

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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.