Home / 2,605.38-3,595.64-1,557.65

Finding the Fourth Proportional to 2,605.38, 3,595.64 and 1,557.65

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Solution

The fourth proportional to 2,605.38, 3,595.64 and 1,557.65 is: 2,149.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.38 : 3,595.64 = 1,557.65 : x
  2. Step 2: Convert to fraction form
    2,605.38/3,595.64 = 1,557.65/x
  3. Step 3: Cross multiply
    2,605.38x = 3,595.64 × 1,557.65
  4. Step 4: Simplify right side
    2,605.38x = 5,600,748.65
  5. Step 5: Solve for x
    x = 5,600,748.65/2,605.38
  6. Step 6: Final answer
    x = 2,149.69

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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.