Home / 2,862.42-3,949.47-2,075.10

Finding the Fourth Proportional to 2,862.42, 3,949.47 and 2,075.10

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Solution

The fourth proportional to 2,862.42, 3,949.47 and 2,075.10 is: 2,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.42 : 3,949.47 = 2,075.10 : x
  2. Step 2: Convert to fraction form
    2,862.42/3,949.47 = 2,075.10/x
  3. Step 3: Cross multiply
    2,862.42x = 3,949.47 × 2,075.10
  4. Step 4: Simplify right side
    2,862.42x = 8,195,545.20
  5. Step 5: Solve for x
    x = 8,195,545.20/2,862.42
  6. Step 6: Final answer
    x = 2,863.15

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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.