Home / 1,975.79-2,945.67-1,925.30

Finding the Fourth Proportional to 1,975.79, 2,945.67 and 1,925.30

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Solution

The fourth proportional to 1,975.79, 2,945.67 and 1,925.30 is: 2,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.79 : 2,945.67 = 1,925.30 : x
  2. Step 2: Convert to fraction form
    1,975.79/2,945.67 = 1,925.30/x
  3. Step 3: Cross multiply
    1,975.79x = 2,945.67 × 1,925.30
  4. Step 4: Simplify right side
    1,975.79x = 5,671,283.72
  5. Step 5: Solve for x
    x = 5,671,283.72/1,975.79
  6. Step 6: Final answer
    x = 2,870.40

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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.