Home / 2,752.40-3,798.36-1,557.65

Finding the Fourth Proportional to 2,752.40, 3,798.36 and 1,557.65

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Solution

The fourth proportional to 2,752.40, 3,798.36 and 1,557.65 is: 2,149.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.40 : 3,798.36 = 1,557.65 : x
  2. Step 2: Convert to fraction form
    2,752.40/3,798.36 = 1,557.65/x
  3. Step 3: Cross multiply
    2,752.40x = 3,798.36 × 1,557.65
  4. Step 4: Simplify right side
    2,752.40x = 5,916,496.46
  5. Step 5: Solve for x
    x = 5,916,496.46/2,752.40
  6. Step 6: Final answer
    x = 2,149.58

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1.5x scale

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.