Home / 3,018.02-4,165.05-1,970.06

Finding the Fourth Proportional to 3,018.02, 4,165.05 and 1,970.06

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Solution

The fourth proportional to 3,018.02, 4,165.05 and 1,970.06 is: 2,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.02 : 4,165.05 = 1,970.06 : x
  2. Step 2: Convert to fraction form
    3,018.02/4,165.05 = 1,970.06/x
  3. Step 3: Cross multiply
    3,018.02x = 4,165.05 × 1,970.06
  4. Step 4: Simplify right side
    3,018.02x = 8,205,398.40
  5. Step 5: Solve for x
    x = 8,205,398.40/3,018.02
  6. Step 6: Final answer
    x = 2,718.80

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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.