Home / 1,868.48-2,581.80-1,478.60

Finding the Fourth Proportional to 1,868.48, 2,581.80 and 1,478.60

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Solution

The fourth proportional to 1,868.48, 2,581.80 and 1,478.60 is: 2,043.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.48 : 2,581.80 = 1,478.60 : x
  2. Step 2: Convert to fraction form
    1,868.48/2,581.80 = 1,478.60/x
  3. Step 3: Cross multiply
    1,868.48x = 2,581.80 × 1,478.60
  4. Step 4: Simplify right side
    1,868.48x = 3,817,449.48
  5. Step 5: Solve for x
    x = 3,817,449.48/1,868.48
  6. Step 6: Final answer
    x = 2,043.08

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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.