Home / 2,787.65-3,848.28-2,227.53

Finding the Fourth Proportional to 2,787.65, 3,848.28 and 2,227.53

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Solution

The fourth proportional to 2,787.65, 3,848.28 and 2,227.53 is: 3,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.65 : 3,848.28 = 2,227.53 : x
  2. Step 2: Convert to fraction form
    2,787.65/3,848.28 = 2,227.53/x
  3. Step 3: Cross multiply
    2,787.65x = 3,848.28 × 2,227.53
  4. Step 4: Simplify right side
    2,787.65x = 8,572,159.15
  5. Step 5: Solve for x
    x = 8,572,159.15/2,787.65
  6. Step 6: Final answer
    x = 3,075.05

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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.