Home / 1,938.03-2,674.56-1,075.70

Finding the Fourth Proportional to 1,938.03, 2,674.56 and 1,075.70

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Solution

The fourth proportional to 1,938.03, 2,674.56 and 1,075.70 is: 1,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.03 : 2,674.56 = 1,075.70 : x
  2. Step 2: Convert to fraction form
    1,938.03/2,674.56 = 1,075.70/x
  3. Step 3: Cross multiply
    1,938.03x = 2,674.56 × 1,075.70
  4. Step 4: Simplify right side
    1,938.03x = 2,877,024.19
  5. Step 5: Solve for x
    x = 2,877,024.19/1,938.03
  6. Step 6: Final answer
    x = 1,484.51

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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.