Home / 2,083.20-2,870.40-1,802.88

Finding the Fourth Proportional to 2,083.20, 2,870.40 and 1,802.88

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Solution

The fourth proportional to 2,083.20, 2,870.40 and 1,802.88 is: 2,484.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.20 : 2,870.40 = 1,802.88 : x
  2. Step 2: Convert to fraction form
    2,083.20/2,870.40 = 1,802.88/x
  3. Step 3: Cross multiply
    2,083.20x = 2,870.40 × 1,802.88
  4. Step 4: Simplify right side
    2,083.20x = 5,174,986.75
  5. Step 5: Solve for x
    x = 5,174,986.75/2,083.20
  6. Step 6: Final answer
    x = 2,484.15

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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.