Home / 1,671.68-2,492.96-1,485.20

Finding the Fourth Proportional to 1,671.68, 2,492.96 and 1,485.20

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Solution

The fourth proportional to 1,671.68, 2,492.96 and 1,485.20 is: 2,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.68 : 2,492.96 = 1,485.20 : x
  2. Step 2: Convert to fraction form
    1,671.68/2,492.96 = 1,485.20/x
  3. Step 3: Cross multiply
    1,671.68x = 2,492.96 × 1,485.20
  4. Step 4: Simplify right side
    1,671.68x = 3,702,544.19
  5. Step 5: Solve for x
    x = 3,702,544.19/1,671.68
  6. Step 6: Final answer
    x = 2,214.86

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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.