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Finding the Fourth Proportional to 1,955.42, 2,915.02 and 1,925.45

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Solution

The fourth proportional to 1,955.42, 2,915.02 and 1,925.45 is: 2,870.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.42 : 2,915.02 = 1,925.45 : x
  2. Step 2: Convert to fraction form
    1,955.42/2,915.02 = 1,925.45/x
  3. Step 3: Cross multiply
    1,955.42x = 2,915.02 × 1,925.45
  4. Step 4: Simplify right side
    1,955.42x = 5,612,725.26
  5. Step 5: Solve for x
    x = 5,612,725.26/1,955.42
  6. Step 6: Final answer
    x = 2,870.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.