Home / 2,330.20-3,216.66-1,545.40

Finding the Fourth Proportional to 2,330.20, 3,216.66 and 1,545.40

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Solution

The fourth proportional to 2,330.20, 3,216.66 and 1,545.40 is: 2,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.20 : 3,216.66 = 1,545.40 : x
  2. Step 2: Convert to fraction form
    2,330.20/3,216.66 = 1,545.40/x
  3. Step 3: Cross multiply
    2,330.20x = 3,216.66 × 1,545.40
  4. Step 4: Simplify right side
    2,330.20x = 4,971,026.36
  5. Step 5: Solve for x
    x = 4,971,026.36/2,330.20
  6. Step 6: Final answer
    x = 2,133.30

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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.