Home / 2,145.13-2,959.44-1,348.10

Finding the Fourth Proportional to 2,145.13, 2,959.44 and 1,348.10

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Solution

The fourth proportional to 2,145.13, 2,959.44 and 1,348.10 is: 1,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.13 : 2,959.44 = 1,348.10 : x
  2. Step 2: Convert to fraction form
    2,145.13/2,959.44 = 1,348.10/x
  3. Step 3: Cross multiply
    2,145.13x = 2,959.44 × 1,348.10
  4. Step 4: Simplify right side
    2,145.13x = 3,989,621.06
  5. Step 5: Solve for x
    x = 3,989,621.06/2,145.13
  6. Step 6: Final answer
    x = 1,859.85

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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.