Home / 2,670.08-3,685.05-1,607.90

Finding the Fourth Proportional to 2,670.08, 3,685.05 and 1,607.90

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Solution

The fourth proportional to 2,670.08, 3,685.05 and 1,607.90 is: 2,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.08 : 3,685.05 = 1,607.90 : x
  2. Step 2: Convert to fraction form
    2,670.08/3,685.05 = 1,607.90/x
  3. Step 3: Cross multiply
    2,670.08x = 3,685.05 × 1,607.90
  4. Step 4: Simplify right side
    2,670.08x = 5,925,173.47
  5. Step 5: Solve for x
    x = 5,925,173.47/2,670.08
  6. Step 6: Final answer
    x = 2,219.10

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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.