Home / 3,368.08-4,648.32-1,970.80

Finding the Fourth Proportional to 3,368.08, 4,648.32 and 1,970.80

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Solution

The fourth proportional to 3,368.08, 4,648.32 and 1,970.80 is: 2,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.08 : 4,648.32 = 1,970.80 : x
  2. Step 2: Convert to fraction form
    3,368.08/4,648.32 = 1,970.80/x
  3. Step 3: Cross multiply
    3,368.08x = 4,648.32 × 1,970.80
  4. Step 4: Simplify right side
    3,368.08x = 9,160,909.06
  5. Step 5: Solve for x
    x = 9,160,909.06/3,368.08
  6. Step 6: Final answer
    x = 2,719.92

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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.