Home / 2,800.58-3,862.33-1,681.10

Finding the Fourth Proportional to 2,800.58, 3,862.33 and 1,681.10

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Solution

The fourth proportional to 2,800.58, 3,862.33 and 1,681.10 is: 2,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.58 : 3,862.33 = 1,681.10 : x
  2. Step 2: Convert to fraction form
    2,800.58/3,862.33 = 1,681.10/x
  3. Step 3: Cross multiply
    2,800.58x = 3,862.33 × 1,681.10
  4. Step 4: Simplify right side
    2,800.58x = 6,492,985.11
  5. Step 5: Solve for x
    x = 6,492,985.11/2,800.58
  6. Step 6: Final answer
    x = 2,318.45

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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.