Home / 1,818.12-2,509.32-1,154.76

Finding the Fourth Proportional to 1,818.12, 2,509.32 and 1,154.76

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Solution

The fourth proportional to 1,818.12, 2,509.32 and 1,154.76 is: 1,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.12 : 2,509.32 = 1,154.76 : x
  2. Step 2: Convert to fraction form
    1,818.12/2,509.32 = 1,154.76/x
  3. Step 3: Cross multiply
    1,818.12x = 2,509.32 × 1,154.76
  4. Step 4: Simplify right side
    1,818.12x = 2,897,662.36
  5. Step 5: Solve for x
    x = 2,897,662.36/1,818.12
  6. Step 6: Final answer
    x = 1,593.77

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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.