Home / 3,128.01-4,316.64-1,802.13

Finding the Fourth Proportional to 3,128.01, 4,316.64 and 1,802.13

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Solution

The fourth proportional to 3,128.01, 4,316.64 and 1,802.13 is: 2,486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.01 : 4,316.64 = 1,802.13 : x
  2. Step 2: Convert to fraction form
    3,128.01/4,316.64 = 1,802.13/x
  3. Step 3: Cross multiply
    3,128.01x = 4,316.64 × 1,802.13
  4. Step 4: Simplify right side
    3,128.01x = 7,779,146.44
  5. Step 5: Solve for x
    x = 7,779,146.44/3,128.01
  6. Step 6: Final answer
    x = 2,486.93

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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.