Home / 5,106.04-7,661.96-1,985.63

Finding the Fourth Proportional to 5,106.04, 7,661.96 and 1,985.63

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Solution

The fourth proportional to 5,106.04, 7,661.96 and 1,985.63 is: 2,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.04 : 7,661.96 = 1,985.63 : x
  2. Step 2: Convert to fraction form
    5,106.04/7,661.96 = 1,985.63/x
  3. Step 3: Cross multiply
    5,106.04x = 7,661.96 × 1,985.63
  4. Step 4: Simplify right side
    5,106.04x = 15,213,840.29
  5. Step 5: Solve for x
    x = 15,213,840.29/5,106.04
  6. Step 6: Final answer
    x = 2,979.58

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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.