Home / 5,055.40-6,999.78-4,666.60

Finding the Fourth Proportional to 5,055.40, 6,999.78 and 4,666.60

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Solution

The fourth proportional to 5,055.40, 6,999.78 and 4,666.60 is: 6,461.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.40 : 6,999.78 = 4,666.60 : x
  2. Step 2: Convert to fraction form
    5,055.40/6,999.78 = 4,666.60/x
  3. Step 3: Cross multiply
    5,055.40x = 6,999.78 × 4,666.60
  4. Step 4: Simplify right side
    5,055.40x = 32,665,173.35
  5. Step 5: Solve for x
    x = 32,665,173.35/5,055.40
  6. Step 6: Final answer
    x = 6,461.44

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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.