Home / 1,393.05-2,097.71-1,030.39

Finding the Fourth Proportional to 1,393.05, 2,097.71 and 1,030.39

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Solution

The fourth proportional to 1,393.05, 2,097.71 and 1,030.39 is: 1,551.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.05 : 2,097.71 = 1,030.39 : x
  2. Step 2: Convert to fraction form
    1,393.05/2,097.71 = 1,030.39/x
  3. Step 3: Cross multiply
    1,393.05x = 2,097.71 × 1,030.39
  4. Step 4: Simplify right side
    1,393.05x = 2,161,459.41
  5. Step 5: Solve for x
    x = 2,161,459.41/1,393.05
  6. Step 6: Final answer
    x = 1,551.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.