Home / 3,368.40-4,646.52-1,970.88

Finding the Fourth Proportional to 3,368.40, 4,646.52 and 1,970.88

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Solution

The fourth proportional to 3,368.40, 4,646.52 and 1,970.88 is: 2,718.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.40 : 4,646.52 = 1,970.88 : x
  2. Step 2: Convert to fraction form
    3,368.40/4,646.52 = 1,970.88/x
  3. Step 3: Cross multiply
    3,368.40x = 4,646.52 × 1,970.88
  4. Step 4: Simplify right side
    3,368.40x = 9,157,733.34
  5. Step 5: Solve for x
    x = 9,157,733.34/3,368.40
  6. Step 6: Final answer
    x = 2,718.72

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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.