Home / 2,084.85-2,877.12-1,140.66

Finding the Fourth Proportional to 2,084.85, 2,877.12 and 1,140.66

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Solution

The fourth proportional to 2,084.85, 2,877.12 and 1,140.66 is: 1,574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.85 : 2,877.12 = 1,140.66 : x
  2. Step 2: Convert to fraction form
    2,084.85/2,877.12 = 1,140.66/x
  3. Step 3: Cross multiply
    2,084.85x = 2,877.12 × 1,140.66
  4. Step 4: Simplify right side
    2,084.85x = 3,281,815.70
  5. Step 5: Solve for x
    x = 3,281,815.70/2,084.85
  6. Step 6: Final answer
    x = 1,574.13

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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.