Home / 2,262.40-3,388.56-1,916.80

Finding the Fourth Proportional to 2,262.40, 3,388.56 and 1,916.80

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Solution

The fourth proportional to 2,262.40, 3,388.56 and 1,916.80 is: 2,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.40 : 3,388.56 = 1,916.80 : x
  2. Step 2: Convert to fraction form
    2,262.40/3,388.56 = 1,916.80/x
  3. Step 3: Cross multiply
    2,262.40x = 3,388.56 × 1,916.80
  4. Step 4: Simplify right side
    2,262.40x = 6,495,191.81
  5. Step 5: Solve for x
    x = 6,495,191.81/2,262.40
  6. Step 6: Final answer
    x = 2,870.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.