Finding the Fourth Proportional to 2,128,710.87, 2,937,171.24 and 1,354,059.68
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Solution
The fourth proportional to 2,128,710.87, 2,937,171.24 and 1,354,059.68 is: 1,868,316.26
Step by Step Solution
- Step 1: Write the proportion equation
2,128,710.87 : 2,937,171.24 = 1,354,059.68 : x - Step 2: Convert to fraction form
2,128,710.87/2,937,171.24 = 1,354,059.68/x - Step 3: Cross multiply
2,128,710.87x = 2,937,171.24 × 1,354,059.68 - Step 4: Simplify right side
2,128,710.87x = 3,977,105,134,653.75 - Step 5: Solve for x
x = 3,977,105,134,653.75/2,128,710.87 - Step 6: Final answer
x = 1,868,316.26
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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.