Home / 1,554.32-2,312.20-1,538.66

Finding the Fourth Proportional to 1,554.32, 2,312.20 and 1,538.66

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Solution

The fourth proportional to 1,554.32, 2,312.20 and 1,538.66 is: 2,288.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.32 : 2,312.20 = 1,538.66 : x
  2. Step 2: Convert to fraction form
    1,554.32/2,312.20 = 1,538.66/x
  3. Step 3: Cross multiply
    1,554.32x = 2,312.20 × 1,538.66
  4. Step 4: Simplify right side
    1,554.32x = 3,557,689.65
  5. Step 5: Solve for x
    x = 3,557,689.65/1,554.32
  6. Step 6: Final answer
    x = 2,288.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.