Home / 1,772.77-2,445.35-1,109.08

Finding the Fourth Proportional to 1,772.77, 2,445.35 and 1,109.08

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Solution

The fourth proportional to 1,772.77, 2,445.35 and 1,109.08 is: 1,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.77 : 2,445.35 = 1,109.08 : x
  2. Step 2: Convert to fraction form
    1,772.77/2,445.35 = 1,109.08/x
  3. Step 3: Cross multiply
    1,772.77x = 2,445.35 × 1,109.08
  4. Step 4: Simplify right side
    1,772.77x = 2,712,088.78
  5. Step 5: Solve for x
    x = 2,712,088.78/1,772.77
  6. Step 6: Final answer
    x = 1,529.86

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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.