Home / 2,985.39-4,116.63-1,865.93

Finding the Fourth Proportional to 2,985.39, 4,116.63 and 1,865.93

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Solution

The fourth proportional to 2,985.39, 4,116.63 and 1,865.93 is: 2,572.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.39 : 4,116.63 = 1,865.93 : x
  2. Step 2: Convert to fraction form
    2,985.39/4,116.63 = 1,865.93/x
  3. Step 3: Cross multiply
    2,985.39x = 4,116.63 × 1,865.93
  4. Step 4: Simplify right side
    2,985.39x = 7,681,322.83
  5. Step 5: Solve for x
    x = 7,681,322.83/2,985.39
  6. Step 6: Final answer
    x = 2,572.97

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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.