Home / 2,085.06-2,877.45-1,140.90

Finding the Fourth Proportional to 2,085.06, 2,877.45 and 1,140.90

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Solution

The fourth proportional to 2,085.06, 2,877.45 and 1,140.90 is: 1,574.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.06 : 2,877.45 = 1,140.90 : x
  2. Step 2: Convert to fraction form
    2,085.06/2,877.45 = 1,140.90/x
  3. Step 3: Cross multiply
    2,085.06x = 2,877.45 × 1,140.90
  4. Step 4: Simplify right side
    2,085.06x = 3,282,882.71
  5. Step 5: Solve for x
    x = 3,282,882.71/2,085.06
  6. Step 6: Final answer
    x = 1,574.48

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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.