Home / 2,890.05-3,988.88-1,827.14

Finding the Fourth Proportional to 2,890.05, 3,988.88 and 1,827.14

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Solution

The fourth proportional to 2,890.05, 3,988.88 and 1,827.14 is: 2,521.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.05 : 3,988.88 = 1,827.14 : x
  2. Step 2: Convert to fraction form
    2,890.05/3,988.88 = 1,827.14/x
  3. Step 3: Cross multiply
    2,890.05x = 3,988.88 × 1,827.14
  4. Step 4: Simplify right side
    2,890.05x = 7,288,242.20
  5. Step 5: Solve for x
    x = 7,288,242.20/2,890.05
  6. Step 6: Final answer
    x = 2,521.84

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1.5x scale

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.