Home / 3,715.89-5,574.65-1,118.63

Finding the Fourth Proportional to 3,715.89, 5,574.65 and 1,118.63

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Solution

The fourth proportional to 3,715.89, 5,574.65 and 1,118.63 is: 1,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.89 : 5,574.65 = 1,118.63 : x
  2. Step 2: Convert to fraction form
    3,715.89/5,574.65 = 1,118.63/x
  3. Step 3: Cross multiply
    3,715.89x = 5,574.65 × 1,118.63
  4. Step 4: Simplify right side
    3,715.89x = 6,235,970.73
  5. Step 5: Solve for x
    x = 6,235,970.73/3,715.89
  6. Step 6: Final answer
    x = 1,678.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.