Home / 1,802.68-2,688.44-1,627.72

Finding the Fourth Proportional to 1,802.68, 2,688.44 and 1,627.72

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Solution

The fourth proportional to 1,802.68, 2,688.44 and 1,627.72 is: 2,427.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.68 : 2,688.44 = 1,627.72 : x
  2. Step 2: Convert to fraction form
    1,802.68/2,688.44 = 1,627.72/x
  3. Step 3: Cross multiply
    1,802.68x = 2,688.44 × 1,627.72
  4. Step 4: Simplify right side
    1,802.68x = 4,376,027.56
  5. Step 5: Solve for x
    x = 4,376,027.56/1,802.68
  6. Step 6: Final answer
    x = 2,427.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.