Home / 1,801.98-2,488.11-1,140.42

Finding the Fourth Proportional to 1,801.98, 2,488.11 and 1,140.42

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Solution

The fourth proportional to 1,801.98, 2,488.11 and 1,140.42 is: 1,574.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.98 : 2,488.11 = 1,140.42 : x
  2. Step 2: Convert to fraction form
    1,801.98/2,488.11 = 1,140.42/x
  3. Step 3: Cross multiply
    1,801.98x = 2,488.11 × 1,140.42
  4. Step 4: Simplify right side
    1,801.98x = 2,837,490.41
  5. Step 5: Solve for x
    x = 2,837,490.41/1,801.98
  6. Step 6: Final answer
    x = 1,574.65

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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.