Home / 1,860.60-2,787.28-1,036.40

Finding the Fourth Proportional to 1,860.60, 2,787.28 and 1,036.40

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Solution

The fourth proportional to 1,860.60, 2,787.28 and 1,036.40 is: 1,552.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.60 : 2,787.28 = 1,036.40 : x
  2. Step 2: Convert to fraction form
    1,860.60/2,787.28 = 1,036.40/x
  3. Step 3: Cross multiply
    1,860.60x = 2,787.28 × 1,036.40
  4. Step 4: Simplify right side
    1,860.60x = 2,888,720.46
  5. Step 5: Solve for x
    x = 2,888,720.46/1,860.60
  6. Step 6: Final answer
    x = 1,552.57

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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.