Home / 1,877.25-2,590.61-1,326.21

Finding the Fourth Proportional to 1,877.25, 2,590.61 and 1,326.21

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Solution

The fourth proportional to 1,877.25, 2,590.61 and 1,326.21 is: 1,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.25 : 2,590.61 = 1,326.21 : x
  2. Step 2: Convert to fraction form
    1,877.25/2,590.61 = 1,326.21/x
  3. Step 3: Cross multiply
    1,877.25x = 2,590.61 × 1,326.21
  4. Step 4: Simplify right side
    1,877.25x = 3,435,686.26
  5. Step 5: Solve for x
    x = 3,435,686.26/1,877.25
  6. Step 6: Final answer
    x = 1,830.17

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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.