Home / 4,540.30-6,810.45-1,420.34

Finding the Fourth Proportional to 4,540.30, 6,810.45 and 1,420.34

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Solution

The fourth proportional to 4,540.30, 6,810.45 and 1,420.34 is: 2,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,540.30 : 6,810.45 = 1,420.34 : x
  2. Step 2: Convert to fraction form
    4,540.30/6,810.45 = 1,420.34/x
  3. Step 3: Cross multiply
    4,540.30x = 6,810.45 × 1,420.34
  4. Step 4: Simplify right side
    4,540.30x = 9,673,127.16
  5. Step 5: Solve for x
    x = 9,673,127.16/4,540.30
  6. Step 6: Final answer
    x = 2,130.50

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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.