Home / 1,420.44-2,130.60-846.96

Finding the Fourth Proportional to 1,420.44, 2,130.60 and 846.96

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Solution

The fourth proportional to 1,420.44, 2,130.60 and 846.96 is: 1,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420.44 : 2,130.60 = 846.96 : x
  2. Step 2: Convert to fraction form
    1,420.44/2,130.60 = 846.96/x
  3. Step 3: Cross multiply
    1,420.44x = 2,130.60 × 846.96
  4. Step 4: Simplify right side
    1,420.44x = 1,804,532.98
  5. Step 5: Solve for x
    x = 1,804,532.98/1,420.44
  6. Step 6: Final answer
    x = 1,270.40

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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.