Home / 2,070.16-2,853.58-1,405.85

Finding the Fourth Proportional to 2,070.16, 2,853.58 and 1,405.85

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Solution

The fourth proportional to 2,070.16, 2,853.58 and 1,405.85 is: 1,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.16 : 2,853.58 = 1,405.85 : x
  2. Step 2: Convert to fraction form
    2,070.16/2,853.58 = 1,405.85/x
  3. Step 3: Cross multiply
    2,070.16x = 2,853.58 × 1,405.85
  4. Step 4: Simplify right side
    2,070.16x = 4,011,684.15
  5. Step 5: Solve for x
    x = 4,011,684.15/2,070.16
  6. Step 6: Final answer
    x = 1,937.87

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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.