Home / 1,873.20-2,585.53-1,087.50

Finding the Fourth Proportional to 1,873.20, 2,585.53 and 1,087.50

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Solution

The fourth proportional to 1,873.20, 2,585.53 and 1,087.50 is: 1,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.20 : 2,585.53 = 1,087.50 : x
  2. Step 2: Convert to fraction form
    1,873.20/2,585.53 = 1,087.50/x
  3. Step 3: Cross multiply
    1,873.20x = 2,585.53 × 1,087.50
  4. Step 4: Simplify right side
    1,873.20x = 2,811,763.88
  5. Step 5: Solve for x
    x = 2,811,763.88/1,873.20
  6. Step 6: Final answer
    x = 1,501.05

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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.