Home / 3,695.79-5,545.32-1,386.75

Finding the Fourth Proportional to 3,695.79, 5,545.32 and 1,386.75

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Solution

The fourth proportional to 3,695.79, 5,545.32 and 1,386.75 is: 2,080.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,695.79 : 5,545.32 = 1,386.75 : x
  2. Step 2: Convert to fraction form
    3,695.79/5,545.32 = 1,386.75/x
  3. Step 3: Cross multiply
    3,695.79x = 5,545.32 × 1,386.75
  4. Step 4: Simplify right side
    3,695.79x = 7,689,972.51
  5. Step 5: Solve for x
    x = 7,689,972.51/3,695.79
  6. Step 6: Final answer
    x = 2,080.74

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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.