Home / 2,872,681.86-3,964,268.69-1,565,905.28

Finding the Fourth Proportional to 2,872,681.86, 3,964,268.69 and 1,565,905.28

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Solution

The fourth proportional to 2,872,681.86, 3,964,268.69 and 1,565,905.28 is: 2,160,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,681.86 : 3,964,268.69 = 1,565,905.28 : x
  2. Step 2: Convert to fraction form
    2,872,681.86/3,964,268.69 = 1,565,905.28/x
  3. Step 3: Cross multiply
    2,872,681.86x = 3,964,268.69 × 1,565,905.28
  4. Step 4: Simplify right side
    2,872,681.86x = 6,207,669,273,009.68
  5. Step 5: Solve for x
    x = 6,207,669,273,009.68/2,872,681.86
  6. Step 6: Final answer
    x = 2,160,931.69

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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.