Home / 3,315.02-4,575.14-1,917.50

Finding the Fourth Proportional to 3,315.02, 4,575.14 and 1,917.50

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Solution

The fourth proportional to 3,315.02, 4,575.14 and 1,917.50 is: 2,646.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.02 : 4,575.14 = 1,917.50 : x
  2. Step 2: Convert to fraction form
    3,315.02/4,575.14 = 1,917.50/x
  3. Step 3: Cross multiply
    3,315.02x = 4,575.14 × 1,917.50
  4. Step 4: Simplify right side
    3,315.02x = 8,772,830.95
  5. Step 5: Solve for x
    x = 8,772,830.95/3,315.02
  6. Step 6: Final answer
    x = 2,646.39

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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.