Home / 1,400.60-2,100.90-1,036.10

Finding the Fourth Proportional to 1,400.60, 2,100.90 and 1,036.10

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Solution

The fourth proportional to 1,400.60, 2,100.90 and 1,036.10 is: 1,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.60 : 2,100.90 = 1,036.10 : x
  2. Step 2: Convert to fraction form
    1,400.60/2,100.90 = 1,036.10/x
  3. Step 3: Cross multiply
    1,400.60x = 2,100.90 × 1,036.10
  4. Step 4: Simplify right side
    1,400.60x = 2,176,742.49
  5. Step 5: Solve for x
    x = 2,176,742.49/1,400.60
  6. Step 6: Final answer
    x = 1,554.15

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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.