Home / 1,669.02-2,502.45-802.50

Finding the Fourth Proportional to 1,669.02, 2,502.45 and 802.50

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Solution

The fourth proportional to 1,669.02, 2,502.45 and 802.50 is: 1,203.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.02 : 2,502.45 = 802.50 : x
  2. Step 2: Convert to fraction form
    1,669.02/2,502.45 = 802.50/x
  3. Step 3: Cross multiply
    1,669.02x = 2,502.45 × 802.50
  4. Step 4: Simplify right side
    1,669.02x = 2,008,216.13
  5. Step 5: Solve for x
    x = 2,008,216.13/1,669.02
  6. Step 6: Final answer
    x = 1,203.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.