Home / 2,867.55-3,957.59-1,688.73

Finding the Fourth Proportional to 2,867.55, 3,957.59 and 1,688.73

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Solution

The fourth proportional to 2,867.55, 3,957.59 and 1,688.73 is: 2,330.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.55 : 3,957.59 = 1,688.73 : x
  2. Step 2: Convert to fraction form
    2,867.55/3,957.59 = 1,688.73/x
  3. Step 3: Cross multiply
    2,867.55x = 3,957.59 × 1,688.73
  4. Step 4: Simplify right side
    2,867.55x = 6,683,292.52
  5. Step 5: Solve for x
    x = 6,683,292.52/2,867.55
  6. Step 6: Final answer
    x = 2,330.66

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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.