Home / 1,802.08-2,483.20-1,382.40

Finding the Fourth Proportional to 1,802.08, 2,483.20 and 1,382.40

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Solution

The fourth proportional to 1,802.08, 2,483.20 and 1,382.40 is: 1,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.08 : 2,483.20 = 1,382.40 : x
  2. Step 2: Convert to fraction form
    1,802.08/2,483.20 = 1,382.40/x
  3. Step 3: Cross multiply
    1,802.08x = 2,483.20 × 1,382.40
  4. Step 4: Simplify right side
    1,802.08x = 3,432,775.68
  5. Step 5: Solve for x
    x = 3,432,775.68/1,802.08
  6. Step 6: Final answer
    x = 1,904.90

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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.