Home / 3,117.07-4,671.70-1,557.50

Finding the Fourth Proportional to 3,117.07, 4,671.70 and 1,557.50

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Solution

The fourth proportional to 3,117.07, 4,671.70 and 1,557.50 is: 2,334.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.07 : 4,671.70 = 1,557.50 : x
  2. Step 2: Convert to fraction form
    3,117.07/4,671.70 = 1,557.50/x
  3. Step 3: Cross multiply
    3,117.07x = 4,671.70 × 1,557.50
  4. Step 4: Simplify right side
    3,117.07x = 7,276,189.30
  5. Step 5: Solve for x
    x = 7,276,189.30/3,117.07
  6. Step 6: Final answer
    x = 2,334.31

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1.5x scale

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.