Home / 6,985.60-10,456.80-4,055.20

Finding the Fourth Proportional to 6,985.60, 10,456.80 and 4,055.20

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Solution

The fourth proportional to 6,985.60, 10,456.80 and 4,055.20 is: 6,070.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.60 : 10,456.80 = 4,055.20 : x
  2. Step 2: Convert to fraction form
    6,985.60/10,456.80 = 4,055.20/x
  3. Step 3: Cross multiply
    6,985.60x = 10,456.80 × 4,055.20
  4. Step 4: Simplify right side
    6,985.60x = 42,404,415.36
  5. Step 5: Solve for x
    x = 42,404,415.36/6,985.60
  6. Step 6: Final answer
    x = 6,070.26

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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.