Home / 1,904.60-2,628.32-1,065.30

Finding the Fourth Proportional to 1,904.60, 2,628.32 and 1,065.30

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Solution

The fourth proportional to 1,904.60, 2,628.32 and 1,065.30 is: 1,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.60 : 2,628.32 = 1,065.30 : x
  2. Step 2: Convert to fraction form
    1,904.60/2,628.32 = 1,065.30/x
  3. Step 3: Cross multiply
    1,904.60x = 2,628.32 × 1,065.30
  4. Step 4: Simplify right side
    1,904.60x = 2,799,951.96
  5. Step 5: Solve for x
    x = 2,799,951.96/1,904.60
  6. Step 6: Final answer
    x = 1,470.10

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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.