Home / 2,315.07-3,192.08-1,871.60

Finding the Fourth Proportional to 2,315.07, 3,192.08 and 1,871.60

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Solution

The fourth proportional to 2,315.07, 3,192.08 and 1,871.60 is: 2,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.07 : 3,192.08 = 1,871.60 : x
  2. Step 2: Convert to fraction form
    2,315.07/3,192.08 = 1,871.60/x
  3. Step 3: Cross multiply
    2,315.07x = 3,192.08 × 1,871.60
  4. Step 4: Simplify right side
    2,315.07x = 5,974,271.61
  5. Step 5: Solve for x
    x = 5,974,271.61/2,315.07
  6. Step 6: Final answer
    x = 2,580.60

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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.