Home / 1,720.23-2,368.51-1,518.13

Finding the Fourth Proportional to 1,720.23, 2,368.51 and 1,518.13

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Solution

The fourth proportional to 1,720.23, 2,368.51 and 1,518.13 is: 2,090.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.23 : 2,368.51 = 1,518.13 : x
  2. Step 2: Convert to fraction form
    1,720.23/2,368.51 = 1,518.13/x
  3. Step 3: Cross multiply
    1,720.23x = 2,368.51 × 1,518.13
  4. Step 4: Simplify right side
    1,720.23x = 3,595,706.09
  5. Step 5: Solve for x
    x = 3,595,706.09/1,720.23
  6. Step 6: Final answer
    x = 2,090.25

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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.