Home / 1,571.12-2,345.04-1,386.60

Finding the Fourth Proportional to 1,571.12, 2,345.04 and 1,386.60

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Solution

The fourth proportional to 1,571.12, 2,345.04 and 1,386.60 is: 2,069.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.12 : 2,345.04 = 1,386.60 : x
  2. Step 2: Convert to fraction form
    1,571.12/2,345.04 = 1,386.60/x
  3. Step 3: Cross multiply
    1,571.12x = 2,345.04 × 1,386.60
  4. Step 4: Simplify right side
    1,571.12x = 3,251,632.46
  5. Step 5: Solve for x
    x = 3,251,632.46/1,571.12
  6. Step 6: Final answer
    x = 2,069.63

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.