Home / 3,970.08-5,955.48-1,661.58

Finding the Fourth Proportional to 3,970.08, 5,955.48 and 1,661.58

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Solution

The fourth proportional to 3,970.08, 5,955.48 and 1,661.58 is: 2,492.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.08 : 5,955.48 = 1,661.58 : x
  2. Step 2: Convert to fraction form
    3,970.08/5,955.48 = 1,661.58/x
  3. Step 3: Cross multiply
    3,970.08x = 5,955.48 × 1,661.58
  4. Step 4: Simplify right side
    3,970.08x = 9,895,506.46
  5. Step 5: Solve for x
    x = 9,895,506.46/3,970.08
  6. Step 6: Final answer
    x = 2,492.52

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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.