Home / 4,540.47-6,810.67-1,420.50

Finding the Fourth Proportional to 4,540.47, 6,810.67 and 1,420.50

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Solution

The fourth proportional to 4,540.47, 6,810.67 and 1,420.50 is: 2,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,540.47 : 6,810.67 = 1,420.50 : x
  2. Step 2: Convert to fraction form
    4,540.47/6,810.67 = 1,420.50/x
  3. Step 3: Cross multiply
    4,540.47x = 6,810.67 × 1,420.50
  4. Step 4: Simplify right side
    4,540.47x = 9,674,576.06
  5. Step 5: Solve for x
    x = 9,674,576.06/4,540.47
  6. Step 6: Final answer
    x = 2,130.74

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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.