Home / 2,802.02-3,866.81-1,543.13

Finding the Fourth Proportional to 2,802.02, 3,866.81 and 1,543.13

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Solution

The fourth proportional to 2,802.02, 3,866.81 and 1,543.13 is: 2,129.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.02 : 3,866.81 = 1,543.13 : x
  2. Step 2: Convert to fraction form
    2,802.02/3,866.81 = 1,543.13/x
  3. Step 3: Cross multiply
    2,802.02x = 3,866.81 × 1,543.13
  4. Step 4: Simplify right side
    2,802.02x = 5,966,980.11
  5. Step 5: Solve for x
    x = 5,966,980.11/2,802.02
  6. Step 6: Final answer
    x = 2,129.53

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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.