Home / 2,810,441.28-3,878,418.63-1,521,281.28

Finding the Fourth Proportional to 2,810,441.28, 3,878,418.63 and 1,521,281.28

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Solution

The fourth proportional to 2,810,441.28, 3,878,418.63 and 1,521,281.28 is: 2,099,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810,441.28 : 3,878,418.63 = 1,521,281.28 : x
  2. Step 2: Convert to fraction form
    2,810,441.28/3,878,418.63 = 1,521,281.28/x
  3. Step 3: Cross multiply
    2,810,441.28x = 3,878,418.63 × 1,521,281.28
  4. Step 4: Simplify right side
    2,810,441.28x = 5,900,165,657,822.25
  5. Step 5: Solve for x
    x = 5,900,165,657,822.25/2,810,441.28
  6. Step 6: Final answer
    x = 2,099,373.40

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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.