Home / 1,807.40-2,484.56-1,629.20

Finding the Fourth Proportional to 1,807.40, 2,484.56 and 1,629.20

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Solution

The fourth proportional to 1,807.40, 2,484.56 and 1,629.20 is: 2,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.40 : 2,484.56 = 1,629.20 : x
  2. Step 2: Convert to fraction form
    1,807.40/2,484.56 = 1,629.20/x
  3. Step 3: Cross multiply
    1,807.40x = 2,484.56 × 1,629.20
  4. Step 4: Simplify right side
    1,807.40x = 4,047,845.15
  5. Step 5: Solve for x
    x = 4,047,845.15/1,807.40
  6. Step 6: Final answer
    x = 2,239.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.