Home / 1,681.58-2,320.49-973.32

Finding the Fourth Proportional to 1,681.58, 2,320.49 and 973.32

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Solution

The fourth proportional to 1,681.58, 2,320.49 and 973.32 is: 1,343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.58 : 2,320.49 = 973.32 : x
  2. Step 2: Convert to fraction form
    1,681.58/2,320.49 = 973.32/x
  3. Step 3: Cross multiply
    1,681.58x = 2,320.49 × 973.32
  4. Step 4: Simplify right side
    1,681.58x = 2,258,579.33
  5. Step 5: Solve for x
    x = 2,258,579.33/1,681.58
  6. Step 6: Final answer
    x = 1,343.13

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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.