Home / 2,895.77-4,342.36-921.02

Finding the Fourth Proportional to 2,895.77, 4,342.36 and 921.02

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Solution

The fourth proportional to 2,895.77, 4,342.36 and 921.02 is: 1,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.77 : 4,342.36 = 921.02 : x
  2. Step 2: Convert to fraction form
    2,895.77/4,342.36 = 921.02/x
  3. Step 3: Cross multiply
    2,895.77x = 4,342.36 × 921.02
  4. Step 4: Simplify right side
    2,895.77x = 3,999,420.86
  5. Step 5: Solve for x
    x = 3,999,420.86/2,895.77
  6. Step 6: Final answer
    x = 1,381.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.