Home / 2,971.70-4,457.55-1,870.10

Finding the Fourth Proportional to 2,971.70, 4,457.55 and 1,870.10

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Solution

The fourth proportional to 2,971.70, 4,457.55 and 1,870.10 is: 2,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.70 : 4,457.55 = 1,870.10 : x
  2. Step 2: Convert to fraction form
    2,971.70/4,457.55 = 1,870.10/x
  3. Step 3: Cross multiply
    2,971.70x = 4,457.55 × 1,870.10
  4. Step 4: Simplify right side
    2,971.70x = 8,336,064.26
  5. Step 5: Solve for x
    x = 8,336,064.26/2,971.70
  6. Step 6: Final answer
    x = 2,805.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.