Home / 3,320.02-4,978.75-1,345.16

Finding the Fourth Proportional to 3,320.02, 4,978.75 and 1,345.16

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Solution

The fourth proportional to 3,320.02, 4,978.75 and 1,345.16 is: 2,017.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.02 : 4,978.75 = 1,345.16 : x
  2. Step 2: Convert to fraction form
    3,320.02/4,978.75 = 1,345.16/x
  3. Step 3: Cross multiply
    3,320.02x = 4,978.75 × 1,345.16
  4. Step 4: Simplify right side
    3,320.02x = 6,697,215.35
  5. Step 5: Solve for x
    x = 6,697,215.35/3,320.02
  6. Step 6: Final answer
    x = 2,017.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.