Home / 2,042.68-2,818.80-1,158.40

Finding the Fourth Proportional to 2,042.68, 2,818.80 and 1,158.40

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Solution

The fourth proportional to 2,042.68, 2,818.80 and 1,158.40 is: 1,598.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.68 : 2,818.80 = 1,158.40 : x
  2. Step 2: Convert to fraction form
    2,042.68/2,818.80 = 1,158.40/x
  3. Step 3: Cross multiply
    2,042.68x = 2,818.80 × 1,158.40
  4. Step 4: Simplify right side
    2,042.68x = 3,265,297.92
  5. Step 5: Solve for x
    x = 3,265,297.92/2,042.68
  6. Step 6: Final answer
    x = 1,598.54

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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.