Home / 2,170,828.64-2,992,990.40-1,551,373.68

Finding the Fourth Proportional to 2,170,828.64, 2,992,990.40 and 1,551,373.68

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Solution

The fourth proportional to 2,170,828.64, 2,992,990.40 and 1,551,373.68 is: 2,138,928.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170,828.64 : 2,992,990.40 = 1,551,373.68 : x
  2. Step 2: Convert to fraction form
    2,170,828.64/2,992,990.40 = 1,551,373.68/x
  3. Step 3: Cross multiply
    2,170,828.64x = 2,992,990.40 × 1,551,373.68
  4. Step 4: Simplify right side
    2,170,828.64x = 4,643,246,531,052.67
  5. Step 5: Solve for x
    x = 4,643,246,531,052.67/2,170,828.64
  6. Step 6: Final answer
    x = 2,138,928.17

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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.