Home / 4,645.80-6,970.56-1,874.40

Finding the Fourth Proportional to 4,645.80, 6,970.56 and 1,874.40

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Solution

The fourth proportional to 4,645.80, 6,970.56 and 1,874.40 is: 2,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,645.80 : 6,970.56 = 1,874.40 : x
  2. Step 2: Convert to fraction form
    4,645.80/6,970.56 = 1,874.40/x
  3. Step 3: Cross multiply
    4,645.80x = 6,970.56 × 1,874.40
  4. Step 4: Simplify right side
    4,645.80x = 13,065,617.66
  5. Step 5: Solve for x
    x = 13,065,617.66/4,645.80
  6. Step 6: Final answer
    x = 2,812.35

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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.