Home / 2,802.38-3,866.59-1,806.46

Finding the Fourth Proportional to 2,802.38, 3,866.59 and 1,806.46

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Solution

The fourth proportional to 2,802.38, 3,866.59 and 1,806.46 is: 2,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.38 : 3,866.59 = 1,806.46 : x
  2. Step 2: Convert to fraction form
    2,802.38/3,866.59 = 1,806.46/x
  3. Step 3: Cross multiply
    2,802.38x = 3,866.59 × 1,806.46
  4. Step 4: Simplify right side
    2,802.38x = 6,984,840.17
  5. Step 5: Solve for x
    x = 6,984,840.17/2,802.38
  6. Step 6: Final answer
    x = 2,492.47

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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.