Home / 4,298.80-5,931.48-2,970.40

Finding the Fourth Proportional to 4,298.80, 5,931.48 and 2,970.40

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Solution

The fourth proportional to 4,298.80, 5,931.48 and 2,970.40 is: 4,098.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,298.80 : 5,931.48 = 2,970.40 : x
  2. Step 2: Convert to fraction form
    4,298.80/5,931.48 = 2,970.40/x
  3. Step 3: Cross multiply
    4,298.80x = 5,931.48 × 2,970.40
  4. Step 4: Simplify right side
    4,298.80x = 17,618,868.19
  5. Step 5: Solve for x
    x = 17,618,868.19/4,298.80
  6. Step 6: Final answer
    x = 4,098.55

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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.