Home / 1,761.36-2,430.58-975.39

Finding the Fourth Proportional to 1,761.36, 2,430.58 and 975.39

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Solution

The fourth proportional to 1,761.36, 2,430.58 and 975.39 is: 1,345.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.36 : 2,430.58 = 975.39 : x
  2. Step 2: Convert to fraction form
    1,761.36/2,430.58 = 975.39/x
  3. Step 3: Cross multiply
    1,761.36x = 2,430.58 × 975.39
  4. Step 4: Simplify right side
    1,761.36x = 2,370,763.43
  5. Step 5: Solve for x
    x = 2,370,763.43/1,761.36
  6. Step 6: Final answer
    x = 1,345.98

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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.