Home / 2,103.47-2,902.85-1,159.32

Finding the Fourth Proportional to 2,103.47, 2,902.85 and 1,159.32

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Solution

The fourth proportional to 2,103.47, 2,902.85 and 1,159.32 is: 1,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.47 : 2,902.85 = 1,159.32 : x
  2. Step 2: Convert to fraction form
    2,103.47/2,902.85 = 1,159.32/x
  3. Step 3: Cross multiply
    2,103.47x = 2,902.85 × 1,159.32
  4. Step 4: Simplify right side
    2,103.47x = 3,365,326.27
  5. Step 5: Solve for x
    x = 3,365,326.27/2,103.47
  6. Step 6: Final answer
    x = 1,599.90

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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.