Home / 1,330.02-2,005.16-1,236.06

Finding the Fourth Proportional to 1,330.02, 2,005.16 and 1,236.06

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Solution

The fourth proportional to 1,330.02, 2,005.16 and 1,236.06 is: 1,863.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.02 : 2,005.16 = 1,236.06 : x
  2. Step 2: Convert to fraction form
    1,330.02/2,005.16 = 1,236.06/x
  3. Step 3: Cross multiply
    1,330.02x = 2,005.16 × 1,236.06
  4. Step 4: Simplify right side
    1,330.02x = 2,478,491.89
  5. Step 5: Solve for x
    x = 2,478,491.89/1,330.02
  6. Step 6: Final answer
    x = 1,863.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.