Home / 2,157,107.61-2,976,987.12-1,239,515.01

Finding the Fourth Proportional to 2,157,107.61, 2,976,987.12 and 1,239,515.01

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Solution

The fourth proportional to 2,157,107.61, 2,976,987.12 and 1,239,515.01 is: 1,710,633.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,107.61 : 2,976,987.12 = 1,239,515.01 : x
  2. Step 2: Convert to fraction form
    2,157,107.61/2,976,987.12 = 1,239,515.01/x
  3. Step 3: Cross multiply
    2,157,107.61x = 2,976,987.12 × 1,239,515.01
  4. Step 4: Simplify right side
    2,157,107.61x = 3,690,020,219,816.67
  5. Step 5: Solve for x
    x = 3,690,020,219,816.67/2,157,107.61
  6. Step 6: Final answer
    x = 1,710,633.35

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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.