Home / 1,873.40-2,584.85-1,087.47

Finding the Fourth Proportional to 1,873.40, 2,584.85 and 1,087.47

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Solution

The fourth proportional to 1,873.40, 2,584.85 and 1,087.47 is: 1,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.40 : 2,584.85 = 1,087.47 : x
  2. Step 2: Convert to fraction form
    1,873.40/2,584.85 = 1,087.47/x
  3. Step 3: Cross multiply
    1,873.40x = 2,584.85 × 1,087.47
  4. Step 4: Simplify right side
    1,873.40x = 2,810,941.39
  5. Step 5: Solve for x
    x = 2,810,941.39/1,873.40
  6. Step 6: Final answer
    x = 1,500.45

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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.