Home / 1,870.20-2,581.11-1,373.01

Finding the Fourth Proportional to 1,870.20, 2,581.11 and 1,373.01

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Solution

The fourth proportional to 1,870.20, 2,581.11 and 1,373.01 is: 1,894.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.20 : 2,581.11 = 1,373.01 : x
  2. Step 2: Convert to fraction form
    1,870.20/2,581.11 = 1,373.01/x
  3. Step 3: Cross multiply
    1,870.20x = 2,581.11 × 1,373.01
  4. Step 4: Simplify right side
    1,870.20x = 3,543,889.84
  5. Step 5: Solve for x
    x = 3,543,889.84/1,870.20
  6. Step 6: Final answer
    x = 1,894.93

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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.