Home / 1,816.32-2,506.20-1,108.08

Finding the Fourth Proportional to 1,816.32, 2,506.20 and 1,108.08

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Solution

The fourth proportional to 1,816.32, 2,506.20 and 1,108.08 is: 1,528.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.32 : 2,506.20 = 1,108.08 : x
  2. Step 2: Convert to fraction form
    1,816.32/2,506.20 = 1,108.08/x
  3. Step 3: Cross multiply
    1,816.32x = 2,506.20 × 1,108.08
  4. Step 4: Simplify right side
    1,816.32x = 2,777,070.10
  5. Step 5: Solve for x
    x = 2,777,070.10/1,816.32
  6. Step 6: Final answer
    x = 1,528.95

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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.