Home / 3,407.36-4,703.05-1,915.76

Finding the Fourth Proportional to 3,407.36, 4,703.05 and 1,915.76

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Solution

The fourth proportional to 3,407.36, 4,703.05 and 1,915.76 is: 2,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.36 : 4,703.05 = 1,915.76 : x
  2. Step 2: Convert to fraction form
    3,407.36/4,703.05 = 1,915.76/x
  3. Step 3: Cross multiply
    3,407.36x = 4,703.05 × 1,915.76
  4. Step 4: Simplify right side
    3,407.36x = 9,009,915.07
  5. Step 5: Solve for x
    x = 9,009,915.07/3,407.36
  6. Step 6: Final answer
    x = 2,644.25

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1.5x scale

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.