Home / 2,146.40-2,962.07-1,307.13

Finding the Fourth Proportional to 2,146.40, 2,962.07 and 1,307.13

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Solution

The fourth proportional to 2,146.40, 2,962.07 and 1,307.13 is: 1,803.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.40 : 2,962.07 = 1,307.13 : x
  2. Step 2: Convert to fraction form
    2,146.40/2,962.07 = 1,307.13/x
  3. Step 3: Cross multiply
    2,146.40x = 2,962.07 × 1,307.13
  4. Step 4: Simplify right side
    2,146.40x = 3,871,804.02
  5. Step 5: Solve for x
    x = 3,871,804.02/2,146.40
  6. Step 6: Final answer
    x = 1,803.86

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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.