Home / 1,875.51-2,812.30-1,053.56

Finding the Fourth Proportional to 1,875.51, 2,812.30 and 1,053.56

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Solution

The fourth proportional to 1,875.51, 2,812.30 and 1,053.56 is: 1,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.51 : 2,812.30 = 1,053.56 : x
  2. Step 2: Convert to fraction form
    1,875.51/2,812.30 = 1,053.56/x
  3. Step 3: Cross multiply
    1,875.51x = 2,812.30 × 1,053.56
  4. Step 4: Simplify right side
    1,875.51x = 2,962,926.79
  5. Step 5: Solve for x
    x = 2,962,926.79/1,875.51
  6. Step 6: Final answer
    x = 1,579.80

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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.