Home / 4,807.30-6,629.93-3,128.10

Finding the Fourth Proportional to 4,807.30, 6,629.93 and 3,128.10

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Solution

The fourth proportional to 4,807.30, 6,629.93 and 3,128.10 is: 4,314.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.30 : 6,629.93 = 3,128.10 : x
  2. Step 2: Convert to fraction form
    4,807.30/6,629.93 = 3,128.10/x
  3. Step 3: Cross multiply
    4,807.30x = 6,629.93 × 3,128.10
  4. Step 4: Simplify right side
    4,807.30x = 20,739,058.70
  5. Step 5: Solve for x
    x = 20,739,058.70/4,807.30
  6. Step 6: Final answer
    x = 4,314.08

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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.